CN110416935B - Cable shaft structure of high-rise building - Google Patents
Cable shaft structure of high-rise building Download PDFInfo
- Publication number
- CN110416935B CN110416935B CN201910727962.XA CN201910727962A CN110416935B CN 110416935 B CN110416935 B CN 110416935B CN 201910727962 A CN201910727962 A CN 201910727962A CN 110416935 B CN110416935 B CN 110416935B
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- China
- Prior art keywords
- cable
- sealing plate
- layer
- vertical shaft
- cavity
- Prior art date
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/08—Vertical ducts; Channels, e.g. for drainage for receiving utility lines, e.g. cables, pipes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
- H02G3/0412—Heat or fire protective means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/36—Installations of cables or lines in walls, floors or ceilings
- H02G3/38—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a high-rise building cable shaft structure, which comprises a shaft, wherein a shaft cavity which penetrates through up and down is arranged in the shaft, a notch is formed in the shaft cavity and faces each floor, the notches are formed in two sides of the inner wall of the shaft cavity, two sides of the bottom surface of each notch are vertically provided with a connecting lug, a sealing plate is elastically hinged between every two adjacent connecting lugs, more than one cable is fixedly arranged on one surface of the sealing plate, which corresponds to the shaft cavity, the inner wall surface of the shaft cavity, which faces each cable, is provided with a corresponding cable groove, and after the sealing plate is reset, the cable is buckled into the corresponding cable groove; the invention has good fireproof capacity, can quickly extinguish a fire source when a fire disaster happens, separates each floor, prevents high-temperature smoke from quickly spreading to the whole floor, and is safer.
Description
Technical Field
The invention relates to a vertical shaft, in particular to a cable vertical shaft structure of a high-rise building.
Background
Various vertical shaft pipelines are often arranged in the building, such as staircases, elevator shafts, cable shafts, garbage shafts, ventilation shafts, smoke exhaust shafts and the like, penetrate through a plurality of floors or even all floors, and as high-rise buildings are continuously increased, cable shaft fire disasters occur occasionally. The wire and cable in the cable well is used all year round, the ageing condition easily takes place, if daily maintenance is untimely this moment, in case the insulating piece is damaged, the short circuit easily takes place and fires. And once a fire disaster happens, a large amount of heat carried by fire smoke rapidly flows through the cable well and is diffused to the whole building, high-temperature dense smoke rushes to where the combustible substances can be burnt, and the fire spread is accelerated. Therefore, the structure of the existing cable well has great potential safety hazard, and the arrangement structure of the cable in the vertical well is insufficient.
Disclosure of Invention
The invention aims to solve the technical problem that a cable shaft structure of a high-rise building adopts a more reasonable structure, can extinguish flame on a cable at the first time, can quickly leak and isolate from top to bottom, and prevents flue gas from rapidly diffusing.
The invention is realized by the following technical scheme: a high-rise building cable shaft structure comprises a shaft, wherein a shaft cavity which penetrates through the shaft from top to bottom is arranged in the shaft, a notch is formed in the shaft cavity and faces each floor, the notches are formed in two sides of the inner wall of the shaft cavity, a connecting lug is vertically arranged on each of two sides of the bottom surface of each notch, a sealing plate is elastically hinged between every two adjacent connecting lugs, more than one cable is fixedly distributed on one surface of each sealing plate, which corresponds to the shaft cavity, a corresponding cable groove is formed in the inner wall surface of the shaft cavity, which faces each cable, and the cable is buckled into the corresponding cable groove after the sealing plates are reset;
the one deck flame retardant coating is all installed to the shaft intracavity that every layer of building body corresponds, a through-hole is all seted up to the position that faces the cable in the middle of the flame retardant coating, and the cable of bottom passes the through-hole in the middle of the flame retardant coating and stretches into in the top in shaft chamber, makes the closing plate bottom rotate and make to be a contained angle that is less than 90 degrees between closing plate and the horizontal plane after the cable passes the through-hole.
As a preferable technical scheme, the bottom of the sealing plate is provided with an outlet hole for a cable to pass through, and the cable at the bottom passes through the outlet hole at the bottom of the sealing plate and is upwards arranged.
According to the preferable technical scheme, two rotating shafts are arranged on two sides of the bottom of the sealing plate respectively, torsion springs are fixedly mounted on the rotating shafts, rotating shaft holes are formed in the connecting lugs, the rotating shafts are elastically mounted in the rotating shaft holes along with the torsion springs, and the sealing plate is perpendicular to the horizontal plane in a natural state.
Preferably, the cable forms a relief section at the top of the fire-proof layer at the through hole passing through the fire-proof layer.
As a preferable technical scheme, two adjacent sealing plates are in a splayed shape after being expanded.
As the preferred technical scheme, the opposite surfaces of the tops of two adjacent sealing plates are provided with a layer of partition layer.
As preferred technical scheme, the partition layer adopts fire-proof material, and it adopts fire prevention aluminium foil material, and the both sides on partition layer are blocked respectively in the cardboard groove of protrusion setting on the closing plate, and the cardboard groove is seted up on the cardboard, and cardboard one end welding is on the closing plate, and partition layer and cardboard inslot wall are beaten the glue and are fixed.
Preferably, the blocking layer is in a contracted state after the sealing plate is expanded.
As a preferred technical scheme, the width of the partition layer is larger than that of the sealing plate, two side faces of the partition layer are respectively in extrusion contact with the inner wall of the vertical shaft cavity, and end faces of two sides of the sealing plate are 1-2cm away from the inner wall of the vertical shaft cavity.
As a preferable technical scheme, the fire-proof layer comprises an outer covering layer which is made of a rubber layer, a closed filling cavity is formed in the outer covering layer, and dry powder is filled in the filling cavity.
The invention has the beneficial effects that: the invention can extinguish the fire source at the first time when a fire disaster occurs while ensuring the heat dissipation of the cable shaft, seal the floors of the shaft, prevent the diffusion of smoke, block airflow to form a ventilation shaft structure and reduce the diffusion speed of the smoke.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the present invention in a fire state;
FIG. 3 is a top view of the flame retardant layer of the invention;
fig. 4 is a schematic view of the internal structure of the fire-retardant layer of the present invention.
Detailed Description
As shown in fig. 1, the high-rise building cable shaft structure comprises a shaft 1, wherein a shaft cavity 8 which penetrates through the shaft 1 from top to bottom is arranged in the shaft 1, a notch 2 is formed in the shaft cavity 8 and faces each floor, the notches 2 are formed in two sides of the inner wall of the shaft cavity 8, a connecting lug 11 is vertically arranged on each side of the bottom surface of each notch 2, a sealing plate 3 is elastically hinged between every two adjacent connecting lugs 11, more than one cable 5 is fixedly arranged on one side, opposite to the shaft cavity, of the sealing plate 3, a corresponding cable groove (not shown) is formed in the inner wall surface of the shaft cavity 8 facing each cable 5, and after the sealing plate 3 is reset, the cable 5 is buckled in the corresponding cable groove;
one deck flame retardant coating 4 all installs in the shaft intracavity that every layer of building body corresponds, the flame retardant coating width is less than shaft chamber width, glue fixed bonding is beaten with shaft intracavity wall to the flame retardant coating both sides, a through-hole 41 is all seted up to the position that faces the cable in the middle of the flame retardant coating 4, the cable 5 of bottom passes through-hole 41 in the middle of the flame retardant coating and stretches into in shaft chamber 8's top, make behind the through-hole cable 5 make the closing plate bottom rotate and make to be a contained angle that is less than 90 degrees between closing plate and the horizontal plane.
The bottom of the sealing plate 3 is provided with a wire outlet (not shown) through which a cable passes, the cable 5 at the bottom is arranged upwards through the wire outlet at the bottom of the sealing plate 3, the cable 5 and the end face of the sealing plate 3 are bundled by using a steel wire rope or are directly bonded and fixed by glue, the steel wire is troublesome to bundle, and holes need to be formed, so that the glue is preferentially used for fixing in the embodiment.
Wherein, the bottom both sides of closing plate 3 respectively set up a pivot 12, fixed mounting torsion spring (not shown) on the pivot 12, be provided with the pivot hole on the engaging lug, the pivot is carrying torsion spring elastic mounting in the pivot hole, closing plate 3 perpendicular to horizontal plane when natural state, when normal use, closing plate 3 bottom is rotated through pivot 12, torsion spring twists reverse this moment, produce powerful elasticity bounce, but because the cable top passes the through-hole and spacing through the flame retardant coating, therefore the closing plate can not playback, be "eight" font between two closing plates this moment.
Wherein, cable 5 through the through-hole of flame retardant coating its top at the flame retardant coating forms one section and gives way to section 7, should give way to section 7 not only can make the cable can the upper and lower end link up, can make the cable resume the tensile use after the deformation at the closing plate again, prevents to draw to the top cable, should give way to the length of section should not overlength, otherwise as long as satisfy give way to the requirement can.
In this embodiment, the top opposite face of two adjacent closing plates all sets up one deck and cuts off layer 6, cuts off layer 6 and adopts fire-proof material, and it adopts fire prevention aluminium foil material, cuts off the both sides on layer and blocks respectively the cardboard inslot that the protrusion set up on the closing plate, and the cardboard groove is seted up on cardboard (not shown), and cardboard one end welding is on closing plate 3, cuts off layer and cardboard inslot wall and beats the glue and fix, cuts off the layer and is the shrink form after the closing plate struts. After the sealing plate recovers the deformation under the action of the torsion spring, the whole partition layer is stretched, as shown in fig. 2, the partition layer is utilized to separate the upper space from the lower space, and the rapid transmission of smoke on the upper floor and the lower floor is reduced.
In this embodiment, the width of partition layer 6 is greater than the width of closing plate 3, and the both sides face of partition layer 6 respectively with shaft intracavity wall extrusion contact, the both sides end face of closing plate 3 is apart from shaft intracavity wall 1-2cm, because there is the clearance in closing plate and shaft intracavity wall, so can guarantee ventilation and heat dissipation, but the partition layer is after being stretched, can hug closely the shaft chamber, space about the wall as far as possible reduces stretching of flue gas.
As shown in fig. 3 and 4, the fireproof layer 4 includes an outer layer, the outer layer is made of a rubber layer, a closed filling cavity 42 is formed in the outer layer, the filling cavity 42 is filled with dry powder, the fireproof layer 4 is made of a rubber layer, so that the ignition point is low, when the cable at the bottom spontaneously ignites, the cable can be rapidly broken by high temperature, in order to make the dry powder scatter in a burst shape, the filling cavity can be filled with gas, the elastic rubber layer expands, so that the burst effect can be increased once the cable is damaged, the dispersion of the dry powder can be more uniform, the dry powder can be rapidly extinguished after being scattered, meanwhile, under the action of the torsion spring, the sealing plate carries the cable to rapidly hit the inner wall of the shaft, the instant extinguishing effect can be greatly increased by using the hitting force, the dry powder is matched, the cable can be buckled in the cable groove after the sealing plate is reset, so that the sealing plate is tightly attached to, this seals the ignition point of the cable and prevents continued burning.
The invention has the beneficial effects that: the invention can extinguish the fire source at the first time when a fire disaster occurs while ensuring the heat dissipation of the cable shaft, seal the floors of the shaft, prevent the diffusion of smoke, block airflow to form a ventilation shaft structure and reduce the diffusion speed of the smoke.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (7)
1. The utility model provides a high-rise building cable shaft structure which characterized in that: the vertical shaft is internally provided with a vertical shaft cavity which penetrates through the vertical shaft from top to bottom, a notch is formed in the vertical shaft cavity and faces each floor, the notches are formed in two sides of the inner wall of the vertical shaft cavity, a connecting lug is vertically arranged on each of two sides of the bottom surface of each notch, a sealing plate is elastically hinged between every two adjacent connecting lugs, more than one cable is fixedly distributed on one surface of each sealing plate, which corresponds to the vertical shaft cavity, a corresponding cable groove is formed in the inner wall surface of the vertical shaft cavity, which faces each cable, and the cable is buckled into the corresponding cable groove after the sealing plate is reset;
a fireproof layer is arranged in a vertical shaft cavity corresponding to each layer of building body, a through hole is formed in the middle of each fireproof layer and faces a cable, the cable at the bottom penetrates through the through hole in the middle of each fireproof layer and extends into the top of the vertical shaft cavity, and the cable penetrates through the through hole to enable the bottom of the sealing plate to rotate and enable an included angle smaller than 90 degrees to be formed between the sealing plate and the horizontal plane;
the opposite surfaces of the tops of two adjacent sealing plates are provided with a layer of partition layer; the partition layer is made of fireproof materials and made of fireproof aluminum foil materials, two sides of the partition layer are respectively clamped into clamping plate grooves which are convexly arranged on the sealing plate, the clamping plate grooves are formed in the clamping plates, one ends of the clamping plates are welded on the sealing plate, and the partition layer and the inner walls of the clamping plate grooves are fixed by glue; the partition layer is contracted after the sealing plate is expanded.
2. The high-rise building cable shaft structure according to claim 1, wherein: and the bottom of the sealing plate is provided with a wire outlet through which a cable passes, and the cable at the bottom of the sealing plate passes through the wire outlet at the bottom of the sealing plate and is upwards arranged.
3. The high-rise building cable shaft structure according to claim 1, wherein: the bottom both sides of closing plate respectively set up a pivot, fixed mounting torsion spring in the pivot, are provided with the pivot hole on the engaging lug, and the pivot is carried torsion spring elastic mounting and is in the pivot hole, the closing plate is perpendicular to the horizontal plane when natural state.
4. The high-rise building cable shaft structure according to claim 1, wherein: the cable forms a relief section at the top of the fire-resistant layer at the through hole passing through the fire-resistant layer.
5. The high-rise building cable shaft structure according to claim 1, wherein: two adjacent sealing plates are splayed after being unfolded.
6. The high-rise building cable shaft structure according to claim 1, wherein: the width of the partition layer is larger than that of the sealing plate, two side faces of the partition layer are in extrusion contact with the inner wall of the vertical shaft cavity respectively, and end faces of two sides of the sealing plate are 1-2cm away from the inner wall of the vertical shaft cavity.
7. The high-rise building cable shaft structure according to claim 1, wherein: the fireproof layer comprises an outer tegument layer which is a rubber layer, a closed filling cavity is formed in the outer tegument layer, and dry powder is filled in the filling cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727962.XA CN110416935B (en) | 2019-08-08 | 2019-08-08 | Cable shaft structure of high-rise building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727962.XA CN110416935B (en) | 2019-08-08 | 2019-08-08 | Cable shaft structure of high-rise building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110416935A CN110416935A (en) | 2019-11-05 |
| CN110416935B true CN110416935B (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910727962.XA Active CN110416935B (en) | 2019-08-08 | 2019-08-08 | Cable shaft structure of high-rise building |
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| Country | Link |
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| CN (1) | CN110416935B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113599744B (en) * | 2021-08-18 | 2022-10-14 | 河北地质大学 | Cable fire extinguishing device for underground comprehensive pipe gallery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331204A (en) * | 2005-05-27 | 2008-12-24 | 詹保罗·贝努西 | Intumescent seal |
| KR100908681B1 (en) * | 2009-04-16 | 2009-07-29 | 주식회사 한국나이스기술단 | Connecter of lead in cable for supply electric power |
| CN204059645U (en) * | 2014-08-04 | 2014-12-31 | 上海华博信息服务有限公司 | High-rise building elevator shaft plugging device |
| CN205429676U (en) * | 2015-11-30 | 2016-08-03 | 吴华林 | Take supporting device's cable protection pipe fireproof sealing |
| CN107154604A (en) * | 2017-07-16 | 2017-09-12 | 镇江市神龙电器管件有限公司 | A kind of composite fireproof anti-corrosion cable bridge |
-
2019
- 2019-08-08 CN CN201910727962.XA patent/CN110416935B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331204A (en) * | 2005-05-27 | 2008-12-24 | 詹保罗·贝努西 | Intumescent seal |
| KR100908681B1 (en) * | 2009-04-16 | 2009-07-29 | 주식회사 한국나이스기술단 | Connecter of lead in cable for supply electric power |
| CN204059645U (en) * | 2014-08-04 | 2014-12-31 | 上海华博信息服务有限公司 | High-rise building elevator shaft plugging device |
| CN205429676U (en) * | 2015-11-30 | 2016-08-03 | 吴华林 | Take supporting device's cable protection pipe fireproof sealing |
| CN107154604A (en) * | 2017-07-16 | 2017-09-12 | 镇江市神龙电器管件有限公司 | A kind of composite fireproof anti-corrosion cable bridge |
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| Publication number | Publication date |
|---|---|
| CN110416935A (en) | 2019-11-05 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200619 Address after: Room 502-3, east area, building a, headquarters center, No. 23, Guangfu East Street, houtang community, Jiangbei street, Dongyang City, Jinhua City, Zhejiang Province 322100 Applicant after: Dongyang Zhongao Construction Engineering Co.,Ltd. Address before: 322104, Tong Shi Hang Village, six stone street, Dongyang, Zhejiang, Jinhua 6-337 Applicant before: Yu Yuanfang |
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Effective date of registration: 20221229 Address after: 831100 Office 1118, Xintiandi Business Port, Tunhe Road, Changji City, Changji Hui Autonomous Prefecture, Xinjiang Uygur Autonomous Region Patentee after: Xinjiang Shiyi Construction Engineering Co.,Ltd. Address before: 322100 room 502-3, east area, building a, headquarters center, No. 23, Guangfu East Street, houtang community, Jiangbei street, Dongyang City, Jinhua City, Zhejiang Province Patentee before: Dongyang Zhongao Construction Engineering Co.,Ltd. |
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